Improved bbiok-maohdte



@anche i faire' 'garrot' @ffice encuen METCALI, or LELIIND, ILLINOIS.

Letters Patent No. 73,741, dated January 28, 1868.

IMPROVED BItIoKLIIAcnINE.

lgrtztnle nicht tu in tlgete 'ntas'atmt mit mating mi nf tige anne.

TO ALL WHOM I'l MAY 'CONCERN Be it known that I, GEORGE Mn'rcALr, of the village of Leland, county of La Salle, and State of Illinois, have invented a new and useful Machine for the lManufacture of Bricks, entitled the Great-Western Brick- Press; and I do hereby declare that the following is a. full, clear, and exact description ofthe operation vof the same, referencebeihg had to the annexed drawings, making a part of this specification, in which- Figure 1 is a perspective view;

Figure 2,a side elevation;

Figure', an end elevation;

Figure4, a side viewof the self-adjusting frame H; also ofthe form of adjusting-lever A, and its mode of operation. Y

i The machine consists of a frame, as 'shown-'in fig. 1;- also, the self-adjusting fra-me or press as shown in figs. l and 3. The frame H consists of four upright pieces of wood or iron with cross-bars bolted together at the ends, as shown in fig. 3. The levers B and C, made ofircn, are'secured to an iron bar by straps of iron passing around said bar, and boltedto the lever, as shown at'letters B and C, said bar passing between the upright pieces of frame H and secured in their places by blocks bolted under and over said bars, slots being cut in said blocks, permitting said bars and levers to be raised or lowered at pleasure. lThe adjusting-lever A, bolted to a block such a manner as-to move freely, as required, is secured to the frame H by placing said block between theupright pieces of said frame, and ,passing bolts through said frames and blocks, as shown in figs. 3 and 4, said 'blockhaving slots cut in it, through which .the bolts pass, permitting the block and lever to be raised and 'lowered at pleasure. The button F, fig. 2, is made of iron or other. metal, and bolted to the reciprocating bar M i'nsuch n. manner as to move freely on the bolt. The bar u, over which the-button passes, may be made of wood, covered with iron or steel on top to prevent wear. l

The machine is operated by pushing the reciprocating bar M backward until the mould comesimmediate'ly I `ander' the slot in thetop, I, when the pulverized.materialfor making bricks will fill the mould. The bar M is then drawn forward, when the'cover E 'is pushed forward and kept directly over the mould yby the button F, iig. 2. The projection on the coverecatches the lever B. Lever C is also caught'by the press-block D. The bar, Mstill moving forward,v causes the lever B to raise the adjusting-frame H, which forces the press-block D into the-mould, thereby condensing the clay or other material. By the forward motioufof the bar M the levers B vand C are brought to a'vertical position, when thepressure ceases. At the same time the button F passes theend of the block u, which leaves the cover free to move backward on the bar M at the same time the adjustingescrew o strikes the frame, preventing the cover from moving forward. vrlhe bar M still continuing its forward motion, the mould passes forward of the cover and uncovers the brick. The-lever A, as shown ifi g. .4,- now falls 'into its place, catching on the pins v v. The bar M now havinga backward motion, the lever A raises the adjustable fra-me H, forcing the press-block upward flush with the surface of the mould, forcing the brick from the-mould; The bar M continuing itsbackward movement, the brick strikes against the end of the cover, and is in effect carried forward to the end of the bar M, where it may be removed. The pressure is regulated by the bar S,=which maybe vlowered or raised at pleasureA by means of the adjusting-screws, as shown in fig. 2.. The bar M may be made to reciprocate by anyi'of known methods. `A hopper is to be placed o'n the top, -I, to receive the clay. The mould may be inserted so as to press the brick from its hat side. It may be inserted lengthwise or across the bar,v as seen t.

I am aware that reciprocating moulds have lbeen used for the manufacture ofbrick, and therefore do not claim the reciprocal motion as such; but I claim, and wish to sec'nre by LettersPatentj The vertically-oscillating frame H,-.with its levers B, and C, the mould-cover E', press-block D, and mould-bar M, with button and slide F and u, all combined antimrranged to operate substantially as and for the purposes set forth.

GEORGE METOALF.

Witnesses A. Il.` Donn, H. CB. GEORGE. 

